It was the curved shape of the lens that led to its name being borrowed, in the late 17th century, from the Latin name of the lentil plant, lens culinaris. In French, another word for lens is objectif ...

Back in the days of yesteryear, when I bought my first single-len reflex, cameras came with single-focal-length lenses. Usually you started out with a lens of about 50 millimeters, because that was ...

Perspective in an image is all about the relationships between objects in the scene; specifically their relative sizes and positions … Perspective in an image is all about the relationships between ...

Many photographers have the impression that wide-angle lenses produce a different perspective from, say, telephoto lenses. But in fact lens focal length has no influence upon perspective as such; ...

When most of us talk digital cameras, we talk megapixels, ISO, image noise, shot-per-second speed and image processing. We’re tech geeks. But really, none of that ...

Whether you want to shoot a tennis match or take a close-up of a butterfly, you will need the right lens for the job. The primary differentiators among lenses are focal length (the distance at which ...